Qt resets screen to landscape instead of locking the current orientation when `disable_rotation` is set in OpenGL blacklist

As a result of QTBUG-49541, the entry `disable_rotation` in the OpenGL blacklist would disable screen rotation to prevent a crash when the screen rotates. In practice, it actually forces the screen orientation to become landscape instead of merely locking the current orientation. This is a huge annoyance for users who mount their monitors in a different orientation due to reasons.

(Our application provides an option to switch to ANGLE as a workaround, but most other applications might not.)